/*
 * SonarQube
 * Copyright (C) 2009-2017 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
import { combineReducers } from 'redux';
import { keyBy, uniq } from 'lodash';
import { RECEIVE_COMPONENTS, RECEIVE_PROJECT_TAGS } from './actions';

const byKey = (state = {}, action = {}) => {
  if (action.type === RECEIVE_COMPONENTS) {
    const changes = keyBy(action.components, 'key');
    return { ...state, ...changes };
  }

  if (action.type === RECEIVE_PROJECT_TAGS) {
    const project = state[action.project];
    if (project) {
      return { ...state, [action.project]: { ...project, tags: action.tags } };
    }
  }

  return state;
};

const keys = (state = [], action = {}) => {
  if (action.type === RECEIVE_COMPONENTS) {
    const changes = action.components.map(f => f.key);
    return uniq([...state, ...changes]);
  }

  return state;
};

export default combineReducers({ byKey, keys });

export const getComponent = (state, key) => state.byKey[key];
